Bad vibration starting at about 10 mph.

[tewnick]

I just replaced my engine. On my 2001 A6 2.7t Automatic . Got it all wrapped up and tried to go for a test drive. I got a really bad vibration that starts at about 10 mph. So needless to say I did not go very far.

I noticed that my driver side CV has a torn boot.
While disconnecting , reconnecting the drive shaft on the back of the transmission several of the ball bearings fell out. I cleaned them up and greased them up with CV grease, and put them back in. It was tight getting them back in.

I did loosen the center mount. I did line it back up with the marks of where it was before.

Someone with previous experience please let me know what your thoughts are to fix this issue. I need to be able to drive my car again.

Thanks.

[glennda5id]

Just reading the title inwould suspect drivetrain related. Most likely something with your driveshaft if it wasn't there before.

[tewnick]

Any one have a resolution?

[milanocito]

torque converter

Use vagcon or another tool to scan gearbox.. and if any dtc

[tewnick]

Used vcds no codes.

[a4kamila6]

You could have assembled it wrong somehow, maybe didnt lube something up?


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[4rings2turbos]

Just in case: do you have aftermarket wheels that require a hubcentric spacer? If so, did you lose one?

[tewnick]

I did Assemble it wrong. I sorted it out Monday.... I watched a youtube video on how to assemble a CV joint and saw what i was doing wrong. Vibration gone now.